The more trailers I see the more I notice certain things, like what you ask?
Before we get into backs hitting the water, ever notice that every trailer that Julia Roberts is in, shows her laughing? Seriously more often than not it happens. Is it bad, no. Is it kind of funny? yes. There’s a new trope and it’s an underwater shot, then someone hits it back towards the camera. Usually with dramatic music playing.
Now for some backs hitting the water.
One more for good measure.
So there you have it, now I’ve ruined it for you. Next time you watch a trailer be prepared for the new trope. Backs hitting the water with dramatic music playing.